72251752245 has 16 divisors (see below), whose sum is σ = 116513064960. Its totient is φ = 38230847424.

The previous prime is 72251752217. The next prime is 72251752273. The reversal of 72251752245 is 54225715227.

It is an interprime number because it is at equal distance from previous prime (72251752217) and next prime (72251752273).

It is not a de Polignac number, because 72251752245 - 2⁸ = 72251751989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72251752197 and 72251752206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18961810 + ... + 18965619.

It is an arithmetic number, because the mean of its divisors is an integer number (7282066560).

Almost surely, 2^72251752245 is an apocalyptic number.

It is an amenable number.

72251752245 is a deficient number, since it is larger than the sum of its proper divisors (44261312715).

72251752245 is a wasteful number, since it uses less digits than its factorization.

72251752245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37927564.

The product of its digits is 392000, while the sum is 42.

The spelling of 72251752245 in words is "seventy-two billion, two hundred fifty-one million, seven hundred fifty-two thousand, two hundred forty-five".